Pakistan's Meteorological Department (PMD) has forecast rain, thunderstorms, and strong winds across the country's northern and upper regions between April 16 and 19, driven by a westerly weather system moving in from the northwest. Areas including Khyber Pakhtunkhwa, Gilgit-Baltistan, Azad Jammu and Kashmir, and parts of Punjab and Balochistan are expected to be affected, with isolated heavy falls and hailstorms likely in several districts. The PMD has warned of potential flash floods and landslides in vulnerable mountain areas, cautioned farmers about crop damage, and advised tourists to avoid non-essential travel during the forecast period.